Method of cutting shingles



April 10, 1928.

C. w. MORTIMER mm'aon 0F cu'rrnae smuems Filed NOV. 1. 1924 Fig. 2.

Patented Apr, 10, 1928.

UNITED". STATES PATENT OFFICE.

W. HOB-T1138, 01? UPPER MONTCLAIR, JER .SEY, ASSIGNOR TO THE W 00mm, A.CORPORATION OF NEW JERSEY.

mzmon ofco'r'rmo snmomas.

Application filed Noyein'her This, invention relates to a shingle, the.

. The shin les are cut from a sheet of roofing materia i in such amanner that-they will have a wide rectangular upperportion and'a.somewhat pointed lower portion and-are "cut from the sheet so thatthere will he very little waste material. The shingles are installedwith the narrow end downu'zu'dly and with the rectangular portionsspaced a considerable distance apart.

The invention will be understood from the description in-connection'with the accompanying drawings, in which Fig. 1 is aplan view showingthe shingles applied to a roof;

Fig. 2 is a plan view showing how the shingles are cut from the-sheet ofroofing material. ,1

As shown" in Fi 2 the shingles are cut so as to have a wideupper'portion defined by the lines 1, 2 and 3 and a lower, some-' whatpointed portion, defined by the lines 4, 5 and G, and the sheetfromwhich the shingles are cutis so laid out that two reverse] y turnedadjacent shingles are cut longitudinally of the sheet and-the pointedportions are adjacent to pointed portions of similar shingles on eachside that are cut out in the same manner. In this way rectangularshingles are also cut out at intervals which will serve as the ordinarywell known shingles. ()n'eof these rectangular portions is defined 'bythe lines 3, 7, 8, 9 and 10. The only waste of material that occurs willbe along the edges of the sheet as shown for example, by-the-cut outportion to the right of the line 9 in Fig. 2.

. The shingles are installed upon a roof as shown in Fig. 1 so. that thenarrow portions 5 extend downwardly and the edges 1 and 3 of adjacentshinglesare spaced apart a distance" equal to the width of the narrowestportion or the length of the line 5. The narrowest? portion of theshingle may for 1 ,1824. Serial No. 747,805.

but well known to those skilled in the art,

may be used if desired. The exposed portions ol' individual shinglesconstitute sixsided figures or hexagons,these hexagons' hein contiguousand covering the surface of too roof. The shingles may be fastened tothe reel as they are being installed by driving nails through the salinenear the corners as indicated at 11.

I claim:

l. The process of cutting shingles from a sheet of roofing materialwhich comprises cutting staggered pairs of parallel lines longitudinallyof said sheet, cutting transverse lines at the ends of said first namedlines and joining the ends of said first named lines by cutting alongdiagonal lines.

2. The process of cutting shingles from a sheet-0f roofing materialwhich comprises cutting staggered pairs of parallel lineslongitudinallyof said sheet, cutting staggered transverse lines at the ends of saidfirst named lines and joining the ends of said first named linesbycutting-alongdiagonal mes.

3. The -pr0cess of cutting shingles-from a sheet. of roofing materialwhich comprises cutting staggered pairs of parallel lines longitudinallyof said sheet, cutting transverse lines at the ends of said first namedlines, cutting transverse lines joining the middle points of lines ofthe respectivejpairs, and joining the ends of'said first named lines bycutting along diagonal lines;

4. The process of cutting shingles from a sheet of roofing materialwhich comprises cutting out rectangles in staggered positions, cuttingalong diagonal lines joining the corners of adjacent rectangles andcutting the portions thereby left into equal parts.

In testimony whereof I allix my signature.

CHARLES W. MORTIMER.

